public class MobileTelephone {
	SIM card;
	public void useSIM(SIM card) {
	   this.card=card;
	}
	public void showMess() {
	   System.out.println("使用的卡是:"+card.giveCorpName()+"提供的");
	   System.out.println("手机号码是:"+card.giveNumber());
	}
}
